Senior DevOps/Site Reliability Engineer

Location: Tokyo
Department: Engineering – Information Security
Workplace Type: On-site

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About Us

Deep expertise. Personal and Industry evolution. Impeccable craft. These are Limit Break’s founding principles.

Limit Break, founded by global industry leaders in mobile gaming, is unlocking its potential beyond games to transform digital markets into real-world economies and digital worlds into vibrant communities. We will take gaming economies for both players and traders to new limits. We combine the power of technology, cryptocurrency, and creative vision to create experiences that connect people from all corners of the globe. This role reports directly to the Chief Technical Officer.

Limit Break is backed by leading investors including Buckley Ventures and Paradigm Ventures. The total crypto market capitalization increased by 25 times in a single year. The adoption rate and number of public and private partnerships prove this to be the next wave of technology, and gaming is leading the way.

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About the Role

Limit Break is looking for a Senior Site Reliability Engineer who blends CI/CD, Kubernetes, and Security experience to join our team. We’re looking for a smart, curious engineer who loves digging into hard problems — finding issues, getting to the root cause, and making things better. A genuine passion for security is a strong plus.

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You Will Have the Opportunity To

• Identify, propose, and execute improvements to performance and scalability bottlenecks across our multi-cluster EKS environment on AWS.
• Measure systems' health, scalability, and performance metrics and identify areas of improvement.
• Deploy services and troubleshoot production issues day-to-day, using code to solve broad operational challenges within the Limit Break Infrastructure and Platform.
• Work with the wider engineering team to identify how we can provide the most production-like environment for running both manual and automated testing.
• Define SLOs, SLIs, monitoring, alerting, and incident response practices — and continuously improve our observability stack (Grafana, Thanos, Loki) to be ready for worldwide scale.

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Qualifications

• 5+ years experience in SRE, DevOps, or Systems engineering.
• Strong background in Kubernetes, including operating multiple EKS clusters in production.
• Extensive experience in Terraform and Ansible.
• CI/CD and automation experience with tools such as GitHub Actions, Jenkins, or GitLab CI.
• Solid background in AWS, including experience with Aurora, RDS (MySQL/SQL), and networking.
• Ability to participate in an on-call rotation.
• Effective communication skills to clearly explain your reasoning and thought process for anything you propose.
• Excellent collaboration skills to work closely with product engineers and product owners, understand their context, and co-design appropriate solutions that balance feature velocity with site reliability.
• Implementation of in-house monitoring and observability infrastructure (e.g., Grafana, Thanos, Loki, or equivalents).
• Implementation of ElasticSearch stack or equivalent solutions for capturing logs from all environments.
• Experience with CloudFlare, CDN technologies, and edge/perimeter networking.
• Exposure to cloud security and perimeter tooling such as Wiz (or equivalent CSPM/vulnerability detection), AWS GuardDuty, CloudFlare Zero Trust, and secrets management platforms.
• Experience addressing vulnerabilities — comfortable finding issues, digging deep to root cause, and driving remediation.
• Implement various tools to monitor and protect the environment in real-time.

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A Plus

• Experience with containerized and serverless architectures (we use both to keep our teams flexible).
• Prior blockchain experience.
• Worked on a large greenfields project(s).

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Apply Now

If you are looking for an exciting role, this job could be a great opportunity for you. Apply to careers@limitbreak.com to explore this new opportunity.

This is an international blockchain gaming company that operates regionally and is opening offices in multiple locations around the globe.

We value diversity at our company. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or any other applicable legally protected characteristics in the location in which the candidate is applying.

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